This was pretty cool! I do wish that the "zoom in then back out to access a new part of the level" was explained a bit better; I feel like I just found the mechanic by accident. But yeah, even just the first recursive level blew my mind at first; I spent quite some time zooming in and out.
Also, it'd be nice if the first click was always a 0-tile, like what a lot of normal Minesweeper games do, just so it's always possible to guarantee your next click won't be a mine.